Stainless Steel Single-Side Threaded Nipples

A stainless single-end nipple is an AISI 304 part with one male-threaded end and one plain weld end. It provides the transition from a welded stainless line or tank to a threaded device.
It is used to create gauge, sensor and drain ports on stainless tanks and manifolds. It is supplied in 12 sizes from 1/8″ to 4″.
Main Applications
- Stainless tank and reactor ports
- Pressure gauge and sensor connections
- Drain and sampling points
- Threaded valve connections on welded lines
- Instrument points on CIP lines
- Stainless manifold outlets
Technical Data
| Fitting type | Single-end nipple: one male-threaded end, one weld end |
|---|---|
| Material | AISI 304 (product range) |
| Sizes | 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″ (product range) |
| Thread | Pipe thread (depending on model) |
| Weld end | Plain, suited to TIG welding |
| Length | Depending on model |
| Surface | Uncoated stainless |
| Working pressure | Depending on model |
Material Options
| Part | AISI 304 stainless | AISI 316 stainless | Carbon steel |
|---|---|---|---|
| Body | AISI 304 stainless steel | AISI 316 stainless steel (selected sizes) | Carbon steel, grade depending on model |
| Surface | Uncoated stainless | Uncoated stainless | Black or oiled |
| Wall thickness | Depending on model | Depending on model | Standard, SCH40, SCH80 |
| Welding | TIG / stainless electrode | TIG / stainless electrode | Stick or TIG/MIG |
| Suitable media | Food, drinking water, mild chemicals | Chloride-containing water, seawater, aggressive chemicals | Heating water, steam, fire water |
Which material? A single-end nipple should be chosen in the same grade as the stainless line or tank it is welded to; a sealant suited to stainless is used on the threaded side.
Advantages
Weld to Thread
- Threaded device connection on a stainless line
Small Sizes
- Instrument ports from 1/8″
12 Sizes
- From 1/8″ to 4″
Hygienic
- Uncoated stainless
Construction and Design Features
- Male thread on one end
- Plain weld end on the other
- AISI 304 body
- Length depending on model
Send the nipple size, length and quantity; we will confirm the suitable stainless single-end nipple from stock.
How to Choose?
- Measure the device threadDetermine the thread size of the sensor or valve to connect.
- Determine the weld locationPlan the weld point on the tank or line.
- Choose the lengthTake insulation or jacket thickness into account.
- Plan the thread sealingUse a tape or sealant that reduces galling on stainless threads.
Complementary Products
Why ORFA?
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Details →Get a quote for your project
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